Prepayments and deposits (Tables)

6 Months Ended

Jun. 30, 2023

Prepayments And Deposits [Abstract]

Schedule of prepayments and deposits

As at	June 30, 2023		December 31, 2022
Prepaid lease deposits	$	0.7	$	0.5
Prepaid transaction costs	2.9		0.6
Prepaid construction charges	3.6		1.4
Prepaid equipment deposits	87.2		86.1
Prepaid insurance	6.3		4.2
Other prepaids	2.8		2.4
Prepaids and deposits	$	103.5	$	95.2